89397551 has 2 divisors, whose sum is σ = 89397552. Its totient is φ = 89397550.

The previous prime is 89397547. The next prime is 89397593. The reversal of 89397551 is 15579398.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89397551 - 2² = 89397547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89397496 and 89397505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89397541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44698775 + 44698776.

It is an arithmetic number, because the mean of its divisors is an integer number (44698776).

Almost surely, 2^89397551 is an apocalyptic number.

89397551 is a deficient number, since it is larger than the sum of its proper divisors (1).

89397551 is an equidigital number, since it uses as much as digits as its factorization.

89397551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 89397551 is about 9455.0278159295. The cubic root of 89397551 is about 447.1383026577.

The spelling of 89397551 in words is "eighty-nine million, three hundred ninety-seven thousand, five hundred fifty-one".